Cystoscope



oct. 16, 192s; 1,688,295

` v T. MAIJGREN cYs'roscoPE Filed Dec. 16, 192'? Patented ct. 16, 1928.

y `'UNITED STATES THORVALD'MAJGREN, OF ROCHESTER, NEW YORK.

cYsrioscorn.

Application filed December 16, 192'?. Serial No. 240,552.

The present invention relates to cystoscopes and more particularly todevices of this character which arev designed to serve a variety ofpurposes while inserted in place within the body of a patient, oneobject of the invention being tol provide an apparatus of this naturehaving a simple and effective means for eonnectingvarious operatinginstruments thereto. Another object is` the provision of such anapparatus whichfwill permit relatively rapid and precise interchange ofoperating instruments with a minimum amount of disturbance and pain tothe patient. f A further object is the provision of simple and effectivemeans for rendering the` cystoscope fluid tight when an operatinginstrument has been inserted therein.

To these and other ends the invention re-` sides in certain improvementsand combinations of parts, all as will be hereinafter more.v

fully described, the novel features being pointed out in the claims atthe end of the specification.

In the drawings: Y Y o Fig. 1 -is an elevation of a cystoscope embodying the present invention;

Fig. 2 is a fragmentary detail viewfof the lower end of the `device withcertain Vparts shown in section to illustrate an instrument such as acatheter, in place therein;

Fig. 3 is a fragmentary sectionalk detail showing a portion of the partsshown in Fig. 3 but on a larger scale;

Fig. l is a detail of the lower endof the cystoscope showingl thearrangement of the threaded section thereon; and c Fig. 5 is ahorizontal section taken substantially on line 5 5 ofFig. 2.. y i

Similar reference numerals throughout the several views indicate thesame parts.

The present embodiment of the invention provides a device of the classdescribed de signed for easy and effective interchangeability ofoperating` instruments therein to insure fiuid tight connections for theparts and at the same time substantially minimizing the shock and painusually attending the interchangingv operation. To this end theinvention `as disclosed is embodied, in a cystoscope or similarinstrument, the lcasing of which has a fitting at ther end thereoftowhich various instruments such as catheters,

lithotr'ites, stone searchers,'etc., after insertion therethrough, maybeconnected inaA ready, secure and safe manner.

Referring more particularly tol the draw-` form for assisting thepenetration of the device within a natural orifice of the body, such asthe urethra, in cases of stricture of such orifice. rl`he upper end of`the tubular 'casing 10 of the device is provided witha suitablefenestral opening 13 to permit egressof an operating instrument into abody cavity, suoliy as the bladder, ina manner which is well known topersons skilled in the art. I

The lower end of the tubular casing 10 is provided with means forsecuring an operat-V ing instrument thereto'so as to provide a fluidtight joint, while at the same time making possible the removal of oneVinstrument kand the insertion and connectionof another while the deviceis in the patients body Without shock or jar andthe accompanying painand discomfort to thepatient. For this purpose, in the presentembodiment of the invention, there is provided at the lower or outerlend of the casing 10, an enlarged tubular portionlll having a bore 15which is of a size tosnugly lit a plug part 16 of the catheter 11 andsimilar plug parts on other instruments to be used with the device. ,y

In order to insure the `proper positioning of the instrument inserted inthe cystoscope, suitable means are provided for guiding the plug 16within the bore 15 and for preventing its turning therein. In thekpresent instance this `function is effected by providing an axially,disposed rib 17 lon the plug 16 which cooperates with a similarlyshaped depressionV in the inner `wall of the bore 15.

Suitable means are provided for clamping the catheter or otherVinstrument in fixed relation to the cystoscope nthe present instanceythe tubular portion 14 of the device is provided with an outer threadedpart 1S near its open end with which a similarly threaded `latingcertain moving parts of the 'device in a mannerwhich is generallyunderstood.

Meansare provided for-holding the nut 19 in permanent relation to thecatheter.Y In the present instance, the plug portion on the catheterisconstructed with a collar 26 -havilnr a 'concentric iro`ectino'vaortion 27 thereon ofsmaller diameter than the collar s and yof a sizetofit accurately within an in- 330, Athe heads of which lie flush withinthe upper. portion of the retaining ring. i

wardly pi-'ojecting'iiange'or .collar 28 on the nut 19 soas to centerthe-nut properly with relation to the plug portion 16. A retaining ring29-is provided in the' present instance foruengaging the flange orcollar 28 to prevent its movement-away from thecentering portion 27.rlhis retaining` ring is suitably securedto the collar 26 by means of aplurality of countersunk-head machine screws In order to insure a fluidtight connection between the parts, `a suitable sealing means, such as agasket 31, is provided between the retaining ring 29 and 'the endsurface of the tubular portion let ofthe casing. -This gasketfmay be ofany desired compositiongsuch as fibre or rubber and is preferably heldmore or less permanently-fon the retaining ring as bymeans of a flangeportion 32 projecting u wkardi around the ed'e of said rin and engagingthe outer edge of the gasket 31.

The flange 32 thus serves to retain the gasket f on the ring 29andfurther tends to prevent undue spreading of the gasket `due to anyypressure kexerted thereon, in connectingl the catheter with thecystoscope. vThe space'between the retaining ring 29 and the collar 26is made somewhat greater than the thickness of the vflange 28 on the nuttoallow for a certain amount of freedomfor 'axial movement ofthe nut19relatively to the plugl portion 16. vThis also allows for aslight amountof rocking movement of the nut-19 to further facilitate starting ofitsthreads 1 upon thev threaded part 18. Y Y s Y j The nut 19 ispreferably provided with a plurality of depressions' around litsperipheryto facilitate holding and turning the nut with theflingers. y

It will be lunderstood that other instruments r which are to be usedwith the cys'toscope will be provided with the same form of,

" f connection with the catheter sothat they will A. all bereadilyinterchangeable;

attaching means las'has been illustrated in In the use of the' device indiagnosis and shocks or jars. f

and lens system of thecystoscope, if it isdesired to use anfinstrumentfor further diagnosis or treatment of the parts, the lens system isremoved by carefully unscrewing the nut 19 from the threaded part 18 andwith-V drawing the plug portion 16 from the bore 15 of the tubular end14. In practice'the attendant grasps the tubular end 14; with one hand,to hold `it steady and unscrews the nut with the other hand. In thisway the instru- 'n ment may be `removed without causing painy to thepatient. The next instrument is iuserted and connected inl place by rstinserting the plug portion 16 a short distance into thebore l5 untilthe'nut isin a position to engage the first thread on the tubularendv14C,

the nut-is then turnedvr with one hand while until the gasket comes"into contact therewith. rlhe device is then in readiness for the nextoperation. It is thus possible to substitute one instrument for anotherwhile the cystoscope is in place, in a manner which is'eX- tremelygentle and avoidsv all undesirable The present invention thus affords asafe, precise and relatively rapid means for interchanging the variousinstruments used with a cystosco'pe and at the same time insures agentle rand practically painless manipulation of4 the instrumentswithout the removal of the cystoscope from the patient and thus greatly:reduces the hazards attending the operation as well-as facilitating thediagnosis and operation as a Whole'.

Y I claim as my invention:

1. In a'surgical instrument, a tube adapted for insertion within a bodyorifice, an instrument adapted for insertion within said tube,

tion on said tube vhavinga bore of asize to fitsaid plugportion, 'one'of said portions having threads eXteriorly thereof and the other. ofsaid portions having a clamping nut associated therewith forA engagementwith said threads whereby said instrument is secured within said tube; Aj 2. InV a surgical' instrument, a tube adapted for insertion within abody orifice, an instrument adapted for insertion within said-tube, aplug portion on saidinstrumenaa portion on saidv tube, having a bore ofasize'to lit said plug portion, and cooperating means on. said` plugportion and the inner surface of said bore for preventing turning oftheplug therein, one of said portions having'threadsy eXteriorly thereofand the other of said portions having wherebysysaid instrument issecured Within said tube.

loo

ya plug portion on said instrument, and a pora clamping nutassociatedthere-c l 4 with for engagement with said threads `3. In asurgical instrument, a tube adapted for insertion Within a body orifice,an instrument' adapted for insertion Within said tube, a plug portion onsaid instrument fitting Within the end of said tube, a clamping nut onsaid plug portion, threads on said tube for engagement With said nut, aretaining member for holding said nut on said plug portion, and sealingmeans between said retaining member and the end of said tube whereby afluid tight joint is provided when the` clamping nut is screwed uponsaid threads. j

4L. In a surgical instrument, a tube adapted for insertion Within a bodyorice, an instrument adapted for insertion Within said tube,

a plug portion on said `instrumentfitting Within theend of said tube, acollar on said plug portion, a clamping nut having an inwardly extendingiange bearing against said collar to limit axial movement of the nut onysaid plug in one direction, a centering projection adjacent said collariitting Within the inwardly projecting flange on said nut to center thesame relatively to said plug, a retaining ring adjacent said centeringprojection for engagement with the ilange on said nut THORVALD MAIJGREN.

